The concept of a content management system, often abbreviated as CMS, is basically a software that provides users with a tool to create, manage, and modify content on a website without the need for specialized technical knowledge or coding.
A CMS takes care of all the structure of your site while you work in the look, content, and strategy.
With a CMS, the possibilities are endless, specially because they are usually user-friendly, easy to deploy, maintain and cost-efficient.